package dijiuzhou;

import java.util.Scanner;

class ArrayUtils{
	public static double findMax(double[] arr,int begin, int end) throws IllegalArgumentException{
		if(begin>=end){
			throw new IllegalArgumentException("begin:"+begin+" >= end:"+end);
		}
		if(begin<0){
			throw new IllegalArgumentException("begin:"+begin+" < 0");
		}
		if(end>arr.length){
			throw new IllegalArgumentException("end:"+end+" > arr.length");
		}
		double max = arr[begin];
		for (int i=begin;i<end;i++) {
			if(arr[i]>max) max=arr[i];
		}
		return max;
		
	}
}

public class Main2 {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		double[] array=new double[n];
		for(int i=0;i<array.length;i++){
			array[i]=sc.nextInt();
		}
		while(sc.hasNextInt()){
			try{
				int begin=Integer.parseInt(sc.next());
				int end=Integer.parseInt(sc.next());
				System.out.println(ArrayUtils.findMax(array, begin, end));
			}catch (NumberFormatException e){
				break;
			}catch (IllegalArgumentException e){
				System.out.println(e);
			}
		}
		try {
		     System.out.println(ArrayUtils.class.getDeclaredMethod("findMax", double[].class,int.class,int.class));
		} catch (Exception e1) {
		}

	}

}
